Datasheet

8
LTC1516
Linear Technology Corporation
1630 McCarthy Blvd., Milpitas, CA 95035-7417
[phone]
●
FAX : [phone]
●
TELEX : 499-3977
LT/GP 0796 7K • PRINTED IN USA
 LINEAR TECHNOLOGY CORPORATION 1996
1
2
7
4
8
3
6
5
C1
+
LTC1516
0.1µF
10µF
0.1µF
V
OUT
= 5V ±4%
I
OUT
= 40mA

+
10µF
+
1516 • TA02
V
IN
SHDN
C2
+
C1
–
V
OUT
GND
C2
–
V
CC
SIM CARD
RST
CLK
I/O
GND
LEVEL SHIFT
3V
GSM
CONTROLLER
Fault-Protected SIM Interface Supply for
GSM Cellular Phones
0.1µF
ON/OFF
10µF
10µF
0.1µF 0.22µF
V
IN
2V TO 5V

CENTRAL SEMICONDUCTOR CMPSH-35 DUAL SCHOTTKY
OPTIONAL CIRCUITRY FOR MAINTAINING –V
OUT
AT LOW V
OUT
LOADS
Q1, Q2: 2N3904
*
**
+
2.2µF
8.2k
3.3k
*
**
1516 • TA03
240Ω
V
OUT
= 5V ±4%
I
OUT
= 20mA,V
IN
≥ 2V
I
OUT
= 50mA, V
IN
≥ 3V
–V
OUT
= –1.4V TO –3V
–I
OUT
= 5mA
1
7
2
4
8
3
6
5
C1
+
LTC1516
V
IN
SHDN
C2
+
C1
–
V
OUT
GND
C2
–
Q2Q1
+
Generating 5V and a Negative Supply
PART NUMBER DESCRIPTION COMMENTS
LT
®
1054 100mA Switched Capacitor Converter Includes Reference and Amplifier for Regulation
LTC1144 20mA Switched Capacitor Converter for Up to 20V Inputs Includes Micropower Shutdown (8µA)
LTC1261 Positive to Negative Regulated Switched Capacitor Converter Low Noise (5mV) Output for Up to 10mA Loads
LTC1262 5V to 12V Regulated Switched Capacitor Converter Up to 30mA at Regulated Output
LTC1550/51 Low Noise Switched Capacitor Regulated Converter Provides –4.1V at 20mA with <1mV Ripple
RELATED PARTS
TYPICAL APPLICATIONS N
U
0.016 – 0.050
0.406 – 1.270
0.010 – 0.020
(0.254 – 0.508)
× 45°
0°– 8° TYP
0.008 – 0.010
(0.203 – 0.254)
SO8 0695
0.053 – 0.069
(1.346 – 1.752)
0.014 – 0.019
(0.355 – 0.483)
0.004 – 0.010
(0.101 – 0.254)
0.050
(1.270)
BSC
1
2
3
4
0.150 – 0.157**
(3.810 – 3.988)
8
7
6
5
0.189 – 0.197*
(4.801 – 5.004)
0.228 – 0.244
(5.791 – 6.197)
DIMENSION DOES NOT INCLUDE MOLD FLASH. MOLD FLASH 
SHALL NOT EXCEED 0.006" (0.152mm) PER SIDE
DIMENSION DOES NOT INCLUDE INTERLEAD FLASH. INTERLEAD 
FLASH SHALL NOT EXCEED 0.010" (0.254mm) PER SIDE


*

**
S8 Package
8-Lead Plastic Small Outline (Narrow 0.150)
(LTC DWG # 05-08-1610)
Dimensions in inches (millimeters) unless otherwise noted.
PACKAGE DESCRIPTION
U